EP0184744B1 - Outillage, en particulier moule pour le moulage par injection - Google Patents

Outillage, en particulier moule pour le moulage par injection Download PDF

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Publication number
EP0184744B1
EP0184744B1 EP85115239A EP85115239A EP0184744B1 EP 0184744 B1 EP0184744 B1 EP 0184744B1 EP 85115239 A EP85115239 A EP 85115239A EP 85115239 A EP85115239 A EP 85115239A EP 0184744 B1 EP0184744 B1 EP 0184744B1
Authority
EP
European Patent Office
Prior art keywords
clamping
quick
plates
tool
bolts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP85115239A
Other languages
German (de)
English (en)
Other versions
EP0184744A3 (en
EP0184744A2 (fr
Inventor
Alois Wörner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT85115239T priority Critical patent/ATE62446T1/de
Publication of EP0184744A2 publication Critical patent/EP0184744A2/fr
Publication of EP0184744A3 publication Critical patent/EP0184744A3/de
Application granted granted Critical
Publication of EP0184744B1 publication Critical patent/EP0184744B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1742—Mounting of moulds; Mould supports
    • B29C45/1743—Mounting of moulds; Mould supports using mounting means projecting from the back side of the mould or from the front side of the mould support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/0063—Connecting non-slidable parts of machine tools to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/305—Mounting of moulds or mould support plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S100/00—Presses
    • Y10S100/918—Bolster and die

Definitions

  • the invention relates to a quick-action clamping device for releasably clamping the halves of a tool that can be moved relative to one another, which can in particular be an injection mold, on the mounting plates of a machine.
  • tool or mold halves are to be understood as meaning the two parts of a tool or a mold which can be moved relative to one another, even if the parting plane does not extend in the middle of the tool or the mold, and consequently the parts of the tool or mold which can be moved relative to one another are designed quite differently could be.
  • PCT application WO 83/01038 describes a device for clamping molds on mold carriers of an injection molding machine, in which the mold extend the halves of a tool to the side of clamping bolts which engage in corresponding recesses in the mold carrier plates.
  • guides run in the mold carrier plates in which wedges are movably guided as locking means for the clamping bolts, which in the locking case extend through transverse recesses in the clamping bolts and thereby secure them in their positions .
  • the actuation of the locking means designed as wedges between their locking positions engaging in the transverse recesses of the tensioning bolts and their positions retracted relative to the tensioning bolts serve to act upon by hydraulic cylinders.
  • the quick coupling means each comprise a plurality of locking bolts projecting laterally beyond the relevant tool half, received in corresponding receiving bores of the quick release plate assigned to the respective tool half, and in the latter approximately perpendicular to their longitudinal axes penetrating transverse recesses which engage positively locking bars are in turn rotatably received in bearing bores running at right angles to the receiving bores for the clamping bolts and are axially displaceable from their engagement positions with the transverse recesses of the clamping bolts and are equipped with clamping eccentrics that can be clamped in the coupling position with a clamping surface of the respective penetrated transverse recess of a clamping bolt.
  • the invention is intended to provide an improved quick-action clamping device of the type and intended use explained at the outset, which is equipped with simple and functionally reliable means for quick and unproblematic assembly and disassembly of a tool.
  • Such a design of the quick release device with conical clamping pins and the latter adapted mounting holes in the form of inner cones enables easy insertion of the clamping pins into the mounting holes with simultaneous centering, but also unproblematic decoupling for the purpose of separating a tool half from the quick release plate assigned in the coupling position.
  • easy handling is ensured if the cones tapering toward the free end of each clamping bolt extend over the entire length of the sections of the clamping bolts which engage in the receiving bores of the quick-action clamping plates in the coupling position.
  • the quick-action clamping device which comprises at least two clamping bolts per tool half, thus ensures, in addition to its coupling function, also a correct assignment of a tool half and a quick-action clamping plate to one another, so that no other centering means or special alignment of the tools is required during installation.
  • the locking rods can be brought into positive engagement positions with the transverse recesses of the clamping bolts by axially displacing them in their bearing bores, so that the respective tool can already be locked and held in this position half is reached on the assigned quick release plate or vice versa.
  • a fastening device is known from US Pat. No. 2,781,199, in which a conical clamping pin engages in a correspondingly designed receiving hole and can be clamped in the coupling position by means of a clamping eccentric, but this is not a connection of a tool or a tool half with a machine-side mounting plate, but about the interchangeable arrangement of a tool holder, for example a chuck, on a clamping plate of a lathe.
  • the clamping eccentric is rotatable, but is not mounted so that it can be pulled out axially from its engagement position with a clamping pin transverse recess, but rather is provided with a flattened area on one side which, in a certain rotational position, allows the clamping pins to be inserted freely into their receiving bores and to be uncoupled uncoupled.
  • the transverse recesses serving to lock the clamping eccentrics with the clamping bolts are designed as C-shaped troughs of shallow depth.
  • the fastening device according to US-A-2 781 199 is therefore in the coupling position Rigid system that could not meet the intended purpose of the quick release device according to the invention, because in view of the intermittent loads when closing and opening the halves of a clamped tool when the device according to the invention is used as intended, the coupling connection between the tool halves and the quick release plates could be loosened gradually .
  • the U-shaped transverse recesses of the clamping bolts extend approximately to the longitudinal axis of the clamping bolt. This ensures that not only a positive locking of the clamping bolts takes place in the coupling position, but the clamping eccentrics of the locking rods engage the pronounced clamping surfaces of the U-shaped transverse recesses and cause a limited elastic deformation of the clamping bolt ends when clamping, which when the clamping eccentrics are removed spring back the mediated clamping forces. This is one of the reasons why, without prejudice to precise clamping in the device according to the invention, the clamping bolts do not become jammed in the conical bores which accommodate them.
  • the elastic deformability of the clamping bolts as a result of the attack of the clamping eccentrics on the clamping surfaces of the U-shaped transverse recesses is also of importance in the invention in that when the eccentric clamping is removed, the resetting of the clamping bolt ends elastically deformed in the clamping position is ensured in the original position, which is desirable installation repeatability is guaranteed.
  • gradual loosening cannot occur during operation.
  • the injection mold 10 shown in FIG. 2 on its own has two mold halves 12, 13 separated in a parting line 11, with outer plates 14, 15, which are accommodated between quick-action clamping plates 16, 17 and are firmly but releasably connected to them by quick-coupling means to be explained below are.
  • the quick release plates 16, 17 are provided in the region of a recess 18 which is initially of no further interest on the sides facing away from one another with centering collars 19 which rise above their outer surfaces.
  • the quick-action clamping plates 16 ', 17' are not provided with centering collars, but with a recess adapted to the centering recess 22 in the mounting plates 20, 21 of the machine, into which a centering ring 19 'is inserted.
  • the screw connections for fastening the quick release plates 16 ', 17' to the mounting plates 20, 21 'of the machine are also not shown.
  • the quick coupling means for the fixed, but at any time releasable connection of the mold halves 12, 13 with a quick release plate 16, 17 or 16 ', 17' consist of the outer plates 14, 15 of the mold halves 12, 13 firmly connected and on the outside via the above-mentioned planes stretching clamping bolts 24, from receiving bores 25 arranged in accordance with the position of these clamping bolts in the quick-action clamping plates which extend at right angles to the plane of the quick-action clamping plates and are arranged symmetrically with respect to a vertical plane on both sides of the central recesses 18 penetrating the quick-action clamping plates, and from locking rods 26 which are received in bearing bores 27 in the manner shown in FIGS. 2 and 3 which extend in the quick release plates perpendicular to the mounting holes 25 for the clamping bolts 24 and cut these mounting holes off-center. This will be explained in more detail below.
  • the locking rods 26 have a pin section 28 which is adapted to the bearing bore 27 and is delimited on one side by an annular collar 29 to which a key attachment surface 30 adjoins.
  • the pin section 28 is followed by a clamping eccentric 31 and adjoined by a bearing pin 32 which runs coaxially to the pin section 28 and which has a reduced diameter compared to the pin section 28.
  • the part of the clamping bolt 24 received between the cone 42 and the bolt head 34 in the installed position within the plates 14, 15, on the other hand, is cylindrical. As indicated in FIG. 6, the cone 42 has only a small opening angle 42 'and the transverse recesses 37 are arranged in the region of the conical section.
  • the receiving hole 25 cut out of the center by a bearing bore 27 for a locking rod 26 in the quick-action clamping plate illustrated in detail in FIG. 7 is designed as an inner cone adapted to the cone 42 of the clamping bolt 24.
  • the quick-action clamping plates 16, 17 or 16 ', 17' are mounted on the mounting plates 20, 21 of the machine in the manner shown in FIG. 1, the position of the quick-action clamping plates by the centering collars 19 or the centering sleeves 19 'is guaranteed.
  • the quick-action clamping plates are fastened to the said mounting plates 20, 21 in a known manner by means of fastening screws, which is not shown further.
  • the locking rods 26 are pulled out of their bearing bores 27, 39 to such an extent that the clamping eccentric 31 and the bearing pin 32 no longer protrude into the receiving bores 25 for the clamping bolts 24 for the purpose of tool assembly.
  • a tool 10 equipped with clamping bolts 24 can be mounted in such a way that the tool is inserted in the correct position between the mounting plates 20, 21 equipped with quick-action clamping plates and then first the clamping bolts 24 of the tool half, which are adjacent to a fixed mounting plate 21 of the machine is, in the mounting holes 25 in the attached to said mounting plate Quick release plate are inserted, whereupon the locking rods bolt 26 are axially displaced in their bearing bores 27, 39 in such a way that the clamping eccentrics 31 engage in the transverse recesses 37 open on one side at the ends of the clamping bolts 24 and the bearing pins 32 of the locking rods adjacent to the clamping eccentrics 31 be accommodated in the correspondingly dimensioned bearing bores 39.
  • the other half of the tool is then clamped in such a way that the movable mounting plate 20, which is also provided with a quick-action clamping plate, is received on transverse guides 43, 44 which are of no further interest here and can be moved according to the double arrow 45 in FIG. 1 relative to the fixed mounting plate 21 of the machine , is brought up to the tool, which is held, for example, by means of a crane or is otherwise supported in the correct position, until the clamping bolts 24 of this tool half fully engage in the receiving bores 25 of the quick-action clamping plate arranged on the movable mounting plate.
  • the associated locking rods 26 By inserting the associated locking rods 26 into their bearing bores and by rotating the locking rods into their clamping positions, this half of the tool is then clamped on the quick-release plate mentioned.
  • an extremely simple and quick tool change can be achieved by attaching the tool 10 to a crane or supporting it in any other suitable manner before disassembly, whereupon the locking rods 26 are rotated about their longitudinal axes 40 and axial pulling out of their locking positions are brought out of engagement with the transverse recesses 37 of the clamping bolts 24. Thereafter, the movable mounting plate 20 of the machine can be moved laterally according to double arrow 45 in FIG. 1, as a result of which the clamping bolts 24 come out of engagement with the mounting holes 25 of the quick-action clamping plate connected to said mounting plate.
  • the tool needs to be moved away from the fixed mounting plate 21 of the machine until the clamping bolts 24 assigned to the adjacent half of the tool come out of engagement with the mounting holes 25 of the quick-action clamping plate assigned to this mounting plate.
  • the tool is then free and can be removed from the machine in a manner of no further interest, and can be replaced by another tool, which is installed in the manner explained above.
  • clamping bolts 24 are used for each tool half, which are received in mounting holes 25 arranged in the correct position in the respective quick-action clamping plate and thereby center and fix the position of the tool half in relation to the corresponding quick-action clamping plate.
  • clamping bolts 24 can also be provided in a different number. For correct positioning of the respective tool half in relation to the assigned quick release plate, at least two clamping bolts are required per tool half.
  • clamping bolts 24 are equipped with cones 42 tapering towards the free ends of the clamping bolts, simple and unproblematic insertion of the clamping bolts into the mounting bores 25 of the quick-action clamping plates and thus precise centering of the tool halves during clamping is ensured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (2)

  1. Dispositif de serrage rapide, destiné à serrer, d'une manière démontable, les moitiés d'un moule mobiles l'une par rapport à l'autre, en particulier d'un moule de moulage par injection, contre les plateaux récepteurs d'une machine, dispositif de serrage rapide dans lequel:
    - des boulons de serrage (24), en saillie latérale par rapport aux moitiés de moule (12, 13), engrènent dans des alésages récepteurs (25), qui s'étendent, dans des plateaux de serrage rapide (16, 17 ; 16', 17'), qui pour leur part peuvent être fixés aux plateaux récepteurs (20, 21) côté machine, perpendiculairement à leur surface,
    - les tronçons des boulons de serrage (24) en saillie par rapport aux moitiés de moule (12, 13) sont conçues comme des cônes (42), qui s'effilent vers les extrémités des boulons de serrage, et sont pourvus d'évidements transversaux sous forme de rainures transversales approximativement en U, ouvertes sur un côté, et dont chacune arrive approximativement jusqu'à l'axe longitudinal des boulons de serrage,
    - pour ce qui est des alésages récepteurs (25) aménagés dans les plateaux de serrage rapide (16, 17 ; 16', 17'), il s'agit de cônes intérieurs, adaptés aux cônes (42) de boulons de serrage (24),
    - dans les évidement transversaux (37) des boulons de serrage (24) pénètrent des tiges de verrouillage (26), qui sont logées en rotation dans les plateaux de serrage rapide (16, 17 ; 16', 17'), dans des alésages de palier (27) perpendiculaires aux alésages récepteurs (25) destinés aux boulons de serrage (24), et peuvent subir un déplacement axial à partir de leur position d'engrènement avec les évidements transversaux (37) aménagés dans les boulons de serrage (24),
    - chaque tige de verrouillage (26) possède un ex centrique de serrage (31), serré, en position d'accouplement, contre une surface de serrage (41) de l'évidement transversal traversant correspondant (37) d'un boulon de serrage (24).
  2. Moule selon la revendication 1, caractérisé en ce que les cônes (42), qui s'effilent chacun vers l'extrémité libre de chaque boulon de serrage, s'étendent sur toute la longueur des tronçons des boulons de serrage pénétrant en position d'accouplement dans les alésages récepteurs (25).
EP85115239A 1984-12-08 1985-11-30 Outillage, en particulier moule pour le moulage par injection Expired - Lifetime EP0184744B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85115239T ATE62446T1 (de) 1984-12-08 1985-11-30 Werkzeug, insbesondere spritzgiessform.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3444800 1984-12-08
DE3444800 1984-12-08
DE19853510329 DE3510329A1 (de) 1984-12-08 1985-03-22 Werkzeug, insbesondere spritzgiessform
DE3510329 1985-03-22

Publications (3)

Publication Number Publication Date
EP0184744A2 EP0184744A2 (fr) 1986-06-18
EP0184744A3 EP0184744A3 (en) 1988-03-30
EP0184744B1 true EP0184744B1 (fr) 1991-04-10

Family

ID=25827168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115239A Expired - Lifetime EP0184744B1 (fr) 1984-12-08 1985-11-30 Outillage, en particulier moule pour le moulage par injection

Country Status (3)

Country Link
US (1) US4655275A (fr)
EP (1) EP0184744B1 (fr)
DE (2) DE3510329A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT388329B (de) * 1987-08-18 1989-06-12 Engel Gmbh Maschbau Spritzgiessform
US4828479A (en) * 1987-08-25 1989-05-09 Pleasant Ronald E Molding apparatus
US4959002A (en) * 1987-08-25 1990-09-25 Pleasant Ronald E Inserts for injection mold machine
DE8813924U1 (de) * 1988-11-08 1989-02-16 Wörner, Alois, 7580 Bühl Spannvorrichtung für Werkzeuge mit über seitliche Aufspannflächen vorstehenden Spannbolzen
US4881715A (en) * 1988-12-30 1989-11-21 Holdt J W Von Safety lift lock with internal member
FI82899C (fi) * 1989-01-20 1991-05-10 Mauno Montonen Form.
DE3929717A1 (de) * 1989-09-07 1991-03-14 Battenfeld Gmbh Befestigungsvorrichtung fuer werkzeuge an einem werkzeugtraeger
DE4100981C2 (de) * 1991-01-15 2001-12-13 Fritz Lutz Handbetätigbare Schnellspannvorrichtung für Spritzgießwerkzeuge
US5302103A (en) * 1991-10-10 1994-04-12 Gencorp Inc. Injection molding machine including quick-change mold assembly
DE4416311A1 (de) * 1994-05-09 1995-11-16 Itw Oberflaechentechnik Gmbh Sprühgerät-Befestigungsvorrichtung
AU6843001A (en) * 2000-06-16 2002-01-02 Dme Co Latching device for injection molds with removable inserts
DE10152050A1 (de) * 2001-10-25 2003-05-08 Hesta Graham Gmbh & Co Kg Formwerkzeug-Spanneinrichtung für Blasformmaschinen
US7381045B2 (en) * 2005-08-30 2008-06-03 R & D Tool & Engineering Co. Quick change blow mold tooling
US7993125B2 (en) * 2008-06-30 2011-08-09 Caterpillar Inc. Repair tool for injection molding hot runner system
DE102010026832A1 (de) * 2010-07-12 2012-01-12 Röders Gmbh Mehrteilige Blasform, insbesondere für die Herstellung von Kunststofflaschen
CN105170961B (zh) * 2015-09-28 2018-01-12 无锡蠡湖增压技术股份有限公司 一种重力浇铸机用金属模快速切换器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE534634A (fr) * 1954-01-12
US2816770A (en) * 1955-09-07 1957-12-17 Vlieg Corp De Tool holder and adapter
US3229791A (en) * 1962-07-11 1966-01-18 Federal Warco Division Apparatus for use with presses and the like
US3702560A (en) * 1971-05-05 1972-11-14 Rohr Industries Inc Quick replacement mechanism for mounting dies in press
CA1002384A (en) * 1972-06-15 1976-12-28 Henry Smit Safety apparatus for presses
JPS55136523A (en) * 1979-04-11 1980-10-24 Futaba Corp Die exchanger
DE3264917D1 (en) * 1981-09-14 1985-08-29 Engel Kg L Clamping device to form supports for forming dies in an injection press
AT381893B (de) * 1981-11-06 1986-12-10 Orlik Josef Aufspannvorrichtung

Also Published As

Publication number Publication date
EP0184744A3 (en) 1988-03-30
DE3510329A1 (de) 1986-06-12
DE3582481D1 (de) 1991-05-16
EP0184744A2 (fr) 1986-06-18
US4655275A (en) 1987-04-07

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